3+4(7+5-9)-7-1=

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Solution for 3+4(7+5-9)-7-1= equation: 


Simplifying
3 + 4(7 + 5 + -9) + -7 + -1 = 0

Combine like terms: 7 + 5 = 12
3 + 4(12 + -9) + -7 + -1 = 0

Combine like terms: 12 + -9 = 3
3 + 4(3) + -7 + -1 = 0

Multiply 4 * 3
3 + 12 + -7 + -1 = 0

Combine like terms: 3 + 12 = 15
15 + -7 + -1 = 0

Combine like terms: 15 + -7 = 8
8 + -1 = 0

Combine like terms: 8 + -1 = 7
7 = 0

Solving
7 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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